EP0264884A3 - Key input device - Google Patents

Key input device Download PDF

Info

Publication number: EP0264884A3
Authority: EP; European Patent Office
Prior art keywords: input device; key input; key; input
Prior art date: 1986-10-20
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Granted

Application number

EP19870115277

Other versions

EP0264884B1 (en

EP0264884B2 (en

EP0264884A2 (en

Inventor

Akinori Ohtsuka

Hitoshi Kurita

Yasutel Fujii

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

OFFERTA DI LICENZA AL PUBBLICO

Original Assignee

Matsushita Electric Industrial Co Ltd

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1986-10-20

Filing date

1987-10-19

Publication date

1990-10-10

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27316507&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0264884(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1986-10-20 Priority claimed from JP61248614A external-priority patent/JPH0625959B2/en

1987-05-28 Priority claimed from JP62132475A external-priority patent/JPH0673255B2/en

1987-05-28 Priority claimed from JP62132474A external-priority patent/JPH0673254B2/en

1987-10-19 Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd

1988-04-27 Publication of EP0264884A2 publication Critical patent/EP0264884A2/en

1990-10-10 Publication of EP0264884A3 publication Critical patent/EP0264884A3/en

1993-03-17 Publication of EP0264884B1 publication Critical patent/EP0264884B1/en

1996-12-18 Application granted granted Critical

1996-12-18 Publication of EP0264884B2 publication Critical patent/EP0264884B2/en

2007-10-19 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Classifications

- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M11/00—Coding in connection with keyboards or like devices, i.e. coding of the position of operated keys
- H03M11/22—Static coding
- H03M11/24—Static coding using analogue means, e.g. by coding the states of multiple switches into a single multi-level analogue signal or by indicating the type of a device using the voltage level at a specific tap of a resistive divider

Landscapes

Engineering & Computer Science (AREA)
Theoretical Computer Science (AREA)
Input From Keyboards Or The Like (AREA)
Push-Button Switches (AREA)

EP87115277A 1986-10-20 1987-10-19 Key input device Expired - Lifetime EP0264884B2 (en)

Applications Claiming Priority (6)

Application Number	Priority Date	Filing Date	Title
JP61248614A JPH0625959B2 (en)	1986-10-20	1986-10-20	Input device
JP248614/86		1986-10-20
JP62132475A JPH0673255B2 (en)	1987-05-28	1987-05-28	Key input device
JP62132474A JPH0673254B2 (en)	1987-05-28	1987-05-28	Key input device
JP132475/87		1987-05-28
JP132474/87		1987-05-28

Publications (4)

Publication Number	Publication Date
EP0264884A2 EP0264884A2 (en)	1988-04-27
EP0264884A3 true EP0264884A3 (en)	1990-10-10
EP0264884B1 EP0264884B1 (en)	1993-03-17
EP0264884B2 EP0264884B2 (en)	1996-12-18

Family

ID=27316507

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP87115277A Expired - Lifetime EP0264884B2 (en)	1986-10-20	1987-10-19	Key input device

Country Status (3)

Country	Link
US (1)	US4872008A (en)
EP (1)	EP0264884B2 (en)
DE (1)	DE3784829T3 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH0628020B2 (en) *	1988-01-22	1994-04-13	株式会社東芝	Key input device
JPH0314075A (en) *	1989-06-13	1991-01-22	Ricoh Co Ltd	Document retrieval device
US5036320A (en) *	1989-07-31	1991-07-30	Chrysler Corporation	Smart multiple switch scanner, single wire bus multiplex system therefor
DE4104230A1 (en) *	1991-02-12	1992-08-13	Siemens Ag	BUS SYSTEM
KR930008505Y1 (en) *	1991-05-04	1993-12-22	주식회사 금성사	Key input circuit of micro computer
US5329377A (en) *	1992-09-14	1994-07-12	Ethix Corporation	Facsimile communicating aid
US5521986A (en) *	1994-11-30	1996-05-28	American Tel-A-Systems, Inc.	Compact data input device
KR100203745B1 (en) *	1996-05-27	1999-06-15	윤종용	A-Cd keypad device and control method thereof
EP0917293A1 (en) *	1997-11-13	1999-05-19	Koninklijke Philips Electronics N.V.	Apparatus with keyboard and keyboard enabling detection of the simultaneous depression of two keys
DE10044087A1 (en) *	2000-09-07	2002-04-04	Bosch Gmbh Robert	Device for activating a control device
KR20040067641A (en) *	2003-01-24	2004-07-30	삼성전자주식회사	Microwave oven
WO2007033520A1 (en) *	2005-09-21	2007-03-29	Chang-Ming Yang	An electronic device
US7688230B2 (en) *	2006-07-13	2010-03-30	Emerson Electric Co.	Switching device with critical switch detection
US8866642B2 (en) *	2007-11-23	2014-10-21	Google Inc.	Uniquely identifiable keys for electronic keyboards
TW201511471A (en) *	2013-09-10	2015-03-16	Wistron Corp	Switching circuit and electronic device
US11893188B2 (en) *	2018-05-18	2024-02-06	1004335 Ontario Inc.	Optical touch sensor devices and systems

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4015254A (en) *	1975-12-04	1977-03-29	General Motors Corporation	Keyboard encoding circuit utilizing an A/D converter
US4429301A (en) *	1981-10-26	1984-01-31	Amp Incorporated	Means for decoding a switch array
GB2151379A (en) *	1983-12-13	1985-07-17	Stephen Harold Alsop	Key pad

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS58213330A (en) *	1982-06-07	1983-12-12	Victor Co Of Japan Ltd	Key input discriminating device
US4736190A (en) *	1982-11-01	1988-04-05	Texas Instruments Incorporated	Sheet membrane keyboard and electronic apparatus using same
US4544924A (en) *	1982-12-22	1985-10-01	Rca Corporation	On-off arrangement in a microprocessor controlled remote transmitter for a consumer instrument
US4581603A (en) *	1983-03-11	1986-04-08	The Maxi-Switch Company	Switch matrix key closure validation device and method
US4725816A (en) *	1984-12-10	1988-02-16	John Fluke Mfg. Co., Inc.	Matrix keyboard encoder circuit

1987
- 1987-10-19 EP EP87115277A patent/EP0264884B2/en not_active Expired - Lifetime
- 1987-10-19 DE DE3784829T patent/DE3784829T3/en not_active Expired - Lifetime
- 1987-10-20 US US07/110,327 patent/US4872008A/en not_active Expired - Lifetime

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4015254A (en) *	1975-12-04	1977-03-29	General Motors Corporation	Keyboard encoding circuit utilizing an A/D converter
US4429301A (en) *	1981-10-26	1984-01-31	Amp Incorporated	Means for decoding a switch array
GB2151379A (en) *	1983-12-13	1985-07-17	Stephen Harold Alsop	Key pad

Also Published As

Publication number	Publication date
DE3784829T2 (en)	1993-10-14
EP0264884B1 (en)	1993-03-17
US4872008A (en)	1989-10-03
EP0264884B2 (en)	1996-12-18
DE3784829D1 (en)	1993-04-22
EP0264884A2 (en)	1988-04-27
DE3784829T3 (en)	1997-04-17

Publication	Publication Date	Title
HK2592A (en)	1992-01-10	Input device
GB2186106B (en)	1989-10-25	Data input device
GB8921473D0 (en)	1989-11-08	Input device
GB8708668D0 (en)	1987-05-13	Lock device
GB8601586D0 (en)	1986-02-26	Device
GB2188805B (en)	1991-01-09	Device
GB8701830D0 (en)	1987-03-04	Effecting key change
EP0256220A3 (en)	1989-05-31	Input device interface
EP0296837A3 (en)	1990-11-28	Input device possessing plural functions
EP0263652A3 (en)	1989-06-07	Input device
GB2207382B (en)	1990-05-30	Single-blow percussion device
EP0253499A3 (en)	1989-05-31	Electronic key
EP0253653A3 (en)	1989-11-23	Input control device
EP0264884A3 (en)	1990-10-10	Key input device
GB8704910D0 (en)	1987-04-08	Lock out device
GB2194566B (en)	1990-07-04	Anti-perching device
GB2190657B (en)	1989-12-13	Diaphragm-and-chamber device
GB2227345B (en)	1993-02-24	Key input apparatus
GB8819608D0 (en)	1988-10-19	Percussion device
GB8607789D0 (en)	1986-04-30	Device
GB8618293D0 (en)	1986-09-03	Propagating device
EP0251801A3 (en)	1988-07-20	Vibrostimulative device
GB8718504D0 (en)	1987-09-09	Key switching device
GB2195974B (en)	1990-02-28	Non-refilling device
GB8629238D0 (en)	1987-01-14	Key

Legal Events

Date	Code	Title	Description
1988-03-12	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1988-04-27	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): DE FR GB IT SE
1990-08-20	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1990-10-10	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): DE FR GB IT SE
1991-01-23	17P	Request for examination filed	Effective date: 19901128
1991-08-07	17Q	First examination report despatched	Effective date: 19910625
1993-01-29	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1993-03-17	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): DE FR GB IT SE
1993-03-17	RIN1	Information on inventor provided before grant (corrected)	Inventor name: OHTSUKA, AKINORI Inventor name: KURITA, HITOSHI Inventor name: FUJII, YASUTERU
1993-04-07	ITF	It: translation for a ep patent filed
1993-04-22	REF	Corresponds to:	Ref document number: 3784829 Country of ref document: DE Date of ref document: 19930422
1993-07-16	ET	Fr: translation filed
1993-12-21	PLBI	Opposition filed	Free format text: ORIGINAL CODE: 0009260
1994-02-09	26	Opposition filed	Opponent name: INTERESSENGEMEINSCHAFT FUER RUNDFUNKSCHUTZRECHTE E Effective date: 19931216
1995-01-31	EAL	Se: european patent in force in sweden	Ref document number: 87115277.3
1995-08-18	PLAB	Opposition data, opponent's data or that of the opponent's representative modified	Free format text: ORIGINAL CODE: 0009299OPPO
1995-10-06	ITPR	It: changes in ownership of a european patent	Owner name: OFFERTA DI LICENZA AL PUBBLICO
1995-10-11	R26	Opposition filed (corrected)	Opponent name: INTERESSENGEMEINSCHAFT FUER RUNDFUNKSCHUTZRECHTE E Effective date: 19931216
1995-11-01	REG	Reference to a national code	Ref country code: GB Ref legal event code: 746 Effective date: 19950928
1996-01-09	PLAW	Interlocutory decision in opposition	Free format text: ORIGINAL CODE: EPIDOS IDOP
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1996-04-27	PLAW	Interlocutory decision in opposition	Free format text: ORIGINAL CODE: EPIDOS IDOP
1996-09-13	ITF	It: translation for a ep patent filed
1996-11-01	PUAH	Patent maintained in amended form	Free format text: ORIGINAL CODE: 0009272
1996-11-01	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: PATENT MAINTAINED AS AMENDED
1996-12-18	27A	Patent maintained in amended form	Effective date: 19961218
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